What Happened to Central Indiana Floods?

Central Indiana has historically been prone to significant flooding, a challenge deeply rooted in its geography of major rivers and wetlands, which are easily overwhelmed by intense rainfall. The "Great Flood" of March 1913 stands as a landmark event, causing widespread devastation, an estimated 200 deaths statewide, and destroying approximately 7,000 homes in Indianapolis alone, with river crests reaching unprecedented levels. This catastrophic event spurred early efforts in flood control and mitigation within the state.

Over the decades, Central Indiana has experienced numerous other major flood events, including widespread flooding in August 1875, the Ohio River Flood of January 1937, and significant flooding in January 2005 that saw some river levels reach their highest in over 90 years. The June 2008 floods were particularly damaging, causing over $1 billion in losses across the state. In response to these recurring challenges, Indiana established a Flood Control Revolving Fund in the 1950s, which was further improved in 2016, providing low-interest loans to local entities for mitigation projects.

Recent years have seen a continued pattern of severe weather. April 2024 brought several rounds of heavy rain, resulting in minor to moderate flooding and road closures across central Indiana. This was followed by extensive river flooding in early April 2025, with some areas experiencing the highest river levels since 2008, and the Big Blue River at Shelbyville reaching its highest crest since 1913. President Donald Trump granted a Major Disaster Declaration for the state in July 2025 for these spring storms and flooding.

The most recent and severe event, described as "historic" and a "once-in-a-lifetime type flood," occurred in August 2026. Torrential rainfall, exceeding 11 inches in some areas, caused catastrophic flash flooding and pushed the White River in communities like Anderson and Noblesville to break records set in 1913, cresting at over 24.9 feet. This led to at least five confirmed fatalities, including individuals attempting to drive through floodwaters and a child killed by a falling tree. Hundreds of people and their pets were rescued, and thousands were displaced, with widespread power outages and road closures.

As of August 16, 2026, Central Indiana is in the midst of emergency response and early recovery. Governor Mike Braun declared a Statewide Disaster Emergency on August 14, 2026, and requested a Presidential Emergency Declaration, which was approved by the White House on August 15, 2026, making up to $5 million in federal assistance available for immediate response needs. Cities like Indianapolis and Fishers also declared local disaster emergencies. Authorities continue to warn residents about rising waters and the dangers of flooded roads, with recovery efforts expected to be extensive and prolonged.